{"id": 3281, "prediction_verbatim": "Prices for lithium futures will be slightly higher in the next 48h.", "created_at": "2026-04-13 00:24:18", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-15 00:44:51", "chain_hash": "badb281ed3b9e8684ec44ce897d508ab42903584a63586705279ed2374e78028", "chain_tx": "2e6iJgWxz78ZRNMafkW6wXZApdt89KtYtsDiYhzt2UccWuYsypcqd9SngAUXsPnHq4cZHeEdxjMMJn7aPaSc6NQ3", "verify": "sha256(f'{prediction_verbatim}|{created_at}|{id}') must equal chain_hash, and the Solana tx memo must read 'workshop:pred:<id>:<chain_hash>' with a timestamp BEFORE resolved_at. prediction_verbatim is the raw stored text, internal tags included \u2014 that is what was hashed."}